Portable sludge treatment apparatus



FIG. 1 is a perspective view of the top, front and right side of the design for a portable sludge treatment apparatus;

FIG. 2 is a perspective view of the top, front and left side of the design;

FIG. 3 is a perspective view of the top, back and right side of the design;

FIG. 4 is a perspective view of the top, back and left side of the design;

FIG. 5 is a perspective view of the bottom, front and right side of the design;

FIG. 6 is a perspective view of the bottom, front and left side of the design;

FIG. 7 is a perspective view of the bottom, back and right side of the design;

FIG. 8 is a perspective view of the bottom, back and left side of the design;

FIG. 9 is a front view of the design;

FIG. 10 is a back view of the design;

FIG. 11 is a left-side view of the design;

FIG. 12 is a right-side view of the design;

FIG. 13 is a top view of the design; and,

FIG. 14 is a bottom view of the design. 

CLAIM The ornamental design for a portable sludge treatment apparatus, as shown and described. 